摘要:
A printing cylinder for a rotary web press to which at least one printing form is attached and a method for operating a rotary web press is disclosed. The printing cylinder is built up of at least one cylinder core and an adapter sleeve installed thereon, wherein the adapter sleeve is configured in such a way that either printing forms in the shape of sleeves or printing plates can be attached thereto before the printing process, depending on the size of the print run.
摘要:
A method of producing a thermal transfer print, including the steps of controlled imagewise heating of a surface layer of the print by means of a laser beam from a laser writing head; applying selected area elements to a substrate using a tape-like transfer film with a width which is small in relation to a width of the substrate, transporting the transfer film continuously between the substrate and the laser beam, close to the substrate surface during imaging moving the transfer film over the substrate width simultaneously and in synchronism with movement of the laser writing head the width of the transfer film being sufficiently large for a number of imaging tracks to be used alongside one another, and selecting an as yet unused track for each imaging operation.
摘要:
A printing form and method for imaging a printing form, in particular a printing sleeve or printing plate, is disclosed. The printing form, having a printing form carrier and a polymer layer which is applied to the printing form carrier, can be imaged and can be erased, it being possible for the polymer layer to be applied by a photocatalytic route and/or a photochemical route, and it being possible for the polymer layer to be erased by the action of electromagnetic radiation and/or by the action of heat and/or by the action of at least one solvent and/or by abrasive removal.
摘要:
A method of producing a print, especially a multicolor print, especially for proof purposes, by controlled heating, in accordance with an image, of a surface layer one or more laser beams from a laser imaging unit and by applying the selected surface elements to a substrate. For the purpose of imaging the substrate, applied to a substrate cylinder, use is made of a tape-like transfer tape with a width which is small in relation to the substrate width, so that the gas produced during the laser imaging operation can escape to a sufficient extent because of the substrate and transfer tape being placed opposite each other over a small area. During the imaging operation this transfer tape is guided continuously through between the substrate and the laser beam or beams, close to the substrate surface, and is moved over the substrate width simultaneously and in synchronism with the movement of the laser imaging unit.
摘要:
The method for imaging a rewritable printing forme includes the following steps: providing the rewritable printing forme having a surface, applying an imaging material to the surface of the printing forme in order to provide a permanent and erasable image on the surface of the printing forme, and registering or recording the application of the imaging material and therefore a quality of an actual imaging, which is generated on the printing forme, on line relative to the application of the imaging material to the surface of the printing forme.
摘要:
To optimize the provision of thermal transfer material and to correctly provide different thermal transfer materials for the respective purpose at the correct time, a plurality of thermal transfer ribbons are made available, each in its own cassette. A control device provides management and controlling mechanism for managing the plurality of cassettes that are stored in a storage device.
摘要:
A printing machine that has a plurality of form cylinders and in which an imaging device images at least two of the form cylinders. The imaging device is arranged in stationary fashion. Laser pulses are deflected onto the form cylinders by light diversion components.
摘要:
A method for imaging a printing form, in particular within a press, is disclosed. A printing form having a rewritable surface being provided, and an imaging material being applied to the surface of the printing form in order to provide a permanent and erasable image. During imaging, in a first step the imaging material is sprayed onto the surface with a relatively low resolution in an image data-oriented manner, and in a second step the imaging material sprayed onto the surface being exposed on the surface with a relatively high resolution in an image data-oriented manner.
摘要:
A system for imaging printing forms includes a raster image processor breaking down a printing image data set into color separation data sets, a data storage medium for storing the color separation data sets generated by the raster image processor, the color separation data sets being printing location-nonspecific color separation data sets, and control devices and imaging devices. For the imaging of a printing form on the basis of one of the color separation data sets, each of the control devices drives one of the imaging devices to image the printing form in question. The system also includes a correction device integrated into each of the control devices to convert the printing location-nonspecific color separation data sets stored in the data storage medium into printing location-specific color separation data sets, which can be used to drive the imaging devices.
摘要:
A method for imaging a printing form, in particular within a press, is disclosed. A printing form having a rewritable surface being provided, and an imaging material being applied to the surface of the printing form in order to provide a permanent and erasable image. During imaging, in a first step the imaging material is sprayed onto the surface with a relatively low resolution in an image data-oriented manner, and in a second step the imaging material sprayed onto the surface being exposed on the surface with a relatively high resolution in an image data-oriented manner.